File 2243-tools-Allow-Emake-options-to-be-passed-in-... of Package erlang

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File 2243-tools-Allow-Emake-options-to-be-passed-in-explicitly.patch of Package erlang (Revision 6a6e740c0161086d7407fd293e77c355)

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From 532a74a36a889e3d7d25004ebce70da62b013755 Mon Sep 17 00:00:00 2001
From: Anthony Jackson <anthony@betaplum.com>
Date: Fri, 3 Mar 2017 10:57:58 +0200
Subject: [PATCH] tools: Allow Emake options to be passed in explicitly

This allows build scripts to use emake without needing to generate
an Emakefile before running make:all/0,1 or make:file/1,2.
---
 lib/tools/doc/src/make.xml    | 24 ++++++++------
 lib/tools/src/make.erl        | 76 +++++++++++++++++++++++--------------------
 lib/tools/test/make_SUITE.erl | 18 ++++++++--
 3 files changed, 70 insertions(+), 48 deletions(-)

diff --git a/lib/tools/doc/src/make.xml b/lib/tools/doc/src/make.xml
index fddf5ebd7..6b878f72f 100644
--- a/lib/tools/doc/src/make.xml
+++ b/lib/tools/doc/src/make.xml
@@ -43,15 +43,15 @@
 <fsummary>Compile a set of modules.</fsummary>
 <type>
 <v>Options = [Option]</v>
- <v>&nbsp;Option = noexec | load | netload | &lt;compiler option&gt;</v>
+	<v>&nbsp;Option = noexec | load | netload | {emake, Emake} | &lt;compiler option&gt;</v>
 </type>
 <desc>
- This function first looks in the current working directory
- for a file named <c>Emakefile</c> (see below) specifying the
- set of modules to compile and the compile options to use. If
- no such file is found, the set of modules to compile
- defaults to all modules in the current working
- directory.
+ This function determines the set of modules to compile and the
+ compile options to use, by first looking for the <c>emake</c> make
+ option, if not present reads the configuration from a file named
+ <c>Emakefile</c> (see below). If no such file is found, the
+ set of modules to compile defaults to all modules in the
+ current working directory.
 Traversing the set of modules, it then recompiles every module for
 which at least one of the following conditions apply:
 <list type="bulleted">
@@ -77,6 +77,9 @@
 <item><c>netload</c> 
 
 Net load mode. Loads all recompiled modules on all known nodes.</item>
+ <item><c>{emake, Emake}</c> 
+
+ Rather than reading the <c>Emakefile</c> specify configuration explicitly.</item>
 </list>
 All items in <c>Options</c> that are not make options are assumed
 to be compiler options and are passed as-is to
@@ -108,9 +111,10 @@
 
 <section>
 <title>Emakefile</title>
- <c>make:all/0,1</c> and <c>make:files/1,2</c> looks in the
- current working directory for a file named <c>Emakefile</c>. If
- it exists, <c>Emakefile</c> should contain elements like this:
+ <c>make:all/0,1</c> and <c>make:files/1,2</c> first looks for
+ <c>{emake, Emake}</c> in options, then in the current working directory
+ for a file named <c>Emakefile</c>. If present <c>Emake</c> should
+ contain elements like this:
 <code type="none">
 Modules.
 {Modules,Options}. </code>
diff --git a/lib/tools/src/make.erl b/lib/tools/src/make.erl
index 37e67cbe3..60695febb 100644
--- a/lib/tools/src/make.erl
+++ b/lib/tools/src/make.erl
@@ -29,7 +29,7 @@
 
 -include_lib("kernel/include/file.hrl").
 
--define(MakeOpts,[noexec,load,netload,noload]).
+-define(MakeOpts,[noexec,load,netload,noload,emake]).
 
 all_or_nothing() ->
 case all() of
@@ -43,29 +43,30 @@ all() ->
 all([]).
 
 all(Options) ->
- {MakeOpts,CompileOpts} = sort_options(Options,[],[]),
- case read_emakefile('Emakefile',CompileOpts) of
-	Files when is_list(Files) ->
-	 do_make_files(Files,MakeOpts);
-	error ->
-	 error
- end.
+ run_emake(undefined, Options).
 
 files(Fs) ->
 files(Fs, []).
 
 files(Fs0, Options) ->
 Fs = [filename:rootname(F,".erl") || F <- Fs0],
+ run_emake(Fs, Options).
+
+run_emake(Mods, Options) ->
 {MakeOpts,CompileOpts} = sort_options(Options,[],[]),
- case get_opts_from_emakefile(Fs,'Emakefile',CompileOpts) of
+ Emake = get_emake(Options),
+ case normalize_emake(Emake, Mods, CompileOpts) of
 	Files when is_list(Files) ->
-	 do_make_files(Files,MakeOpts);	 
-	error -> error
+	 do_make_files(Files,MakeOpts);
+	error ->
+	 error
 end.
 
 do_make_files(Fs, Opts) ->
 process(Fs, lists:member(noexec, Opts), load_opt(Opts)).
 
+sort_options([{emake, _}=H|T],Make,Comp) ->
+ sort_options(T,[H|Make],Comp);
 
 sort_options([H|T],Make,Comp) ->
 case lists:member(H,?MakeOpts) of
@@ -89,20 +90,35 @@ sort_options([],Make,Comp) ->
 %%%
 %%% These elements are converted to [{ModList,OptList},...]
 %%% ModList is a list of modulenames (strings)
-read_emakefile(Emakefile,Opts) ->
- case file:consult(Emakefile) of
-	{ok,Emake} ->
+
+normalize_emake(EmakeRaw, Mods, Opts) ->
+ case EmakeRaw of
+	{ok, Emake} when Mods =:= undefined ->
 	 transform(Emake,Opts,[],[]);
-	{error,enoent} ->
+	{ok, Emake} when is_list(Mods) ->
+	 ModsOpts = transform(Emake,Opts,[],[]),
+	 ModStrings = [coerce_2_list(M) || M <- Mods],
+	 get_opts_from_emakefile(ModsOpts,ModStrings,Opts,[]); 
+	{error,enoent} when Mods =:= undefined ->
 	 %% No Emakefile found - return all modules in current 
 	 %% directory and the options given at command line
-	 Mods = [filename:rootname(F) || F <- filelib:wildcard("*.erl")],
+	 CwdMods = [filename:rootname(F) || F <- filelib:wildcard("*.erl")],
+	 [{CwdMods, Opts}];
+	{error,enoent} when is_list(Mods) ->
 	 [{Mods, Opts}];
-	{error,Other} ->
-	 io:format("make: Trouble reading 'Emakefile':~n~tp~n",[Other]),
+	{error, Error} ->
+	 io:format("make: Trouble reading 'Emakefile':~n~tp~n",[Error]),
 	 error
 end.
 
+get_emake(Opts) ->
+ case proplists:get_value(emake, Opts, false) of
+	false ->
+	 file:consult('Emakefile');
+	OptsEmake ->
+	 {ok, OptsEmake}
+ end.
+
 transform([{Mod,ModOpts}|Emake],Opts,Files,Already) ->
 case expand(Mod,Already) of
 	[] -> 
@@ -143,31 +159,19 @@ expand(Mod,Already) ->
 	 end
 end.
 
-%%% Reads the given Emakefile to see if there are any specific compile 
+%%% Reads the given Emake to see if there are any specific compile 
 %%% options given for the modules.
-get_opts_from_emakefile(Mods,Emakefile,Opts) ->
- case file:consult(Emakefile) of
-	{ok,Emake} ->
-	 Modsandopts = transform(Emake,Opts,[],[]),
-	 ModStrings = [coerce_2_list(M) || M <- Mods],
-	 get_opts_from_emakefile2(Modsandopts,ModStrings,Opts,[]); 
-	{error,enoent} ->
-	 [{Mods, Opts}];
-	{error,Other} ->
-	 io:format("make: Trouble reading 'Emakefile':~n~tp~n",[Other]),
-	 error
- end.
 
-get_opts_from_emakefile2([{MakefileMods,O}|Rest],Mods,Opts,Result) ->
+get_opts_from_emakefile([{MakefileMods,O}|Rest],Mods,Opts,Result) ->
 case members(Mods,MakefileMods,[],Mods) of
 	{[],_} -> 
-	 get_opts_from_emakefile2(Rest,Mods,Opts,Result);
+	 get_opts_from_emakefile(Rest,Mods,Opts,Result);
 	{I,RestOfMods} ->
-	 get_opts_from_emakefile2(Rest,RestOfMods,Opts,[{I,O}|Result])
+	 get_opts_from_emakefile(Rest,RestOfMods,Opts,[{I,O}|Result])
 end;
-get_opts_from_emakefile2([],[],_Opts,Result) ->
+get_opts_from_emakefile([],[],_Opts,Result) ->
 Result;
-get_opts_from_emakefile2([],RestOfMods,Opts,Result) ->
+get_opts_from_emakefile([],RestOfMods,Opts,Result) ->
 [{RestOfMods,Opts}|Result].
 
 members([H|T],MakefileMods,I,Rest) ->
diff --git a/lib/tools/test/make_SUITE.erl b/lib/tools/test/make_SUITE.erl
index e6284db8b..2a94ead32 100644
--- a/lib/tools/test/make_SUITE.erl
+++ b/lib/tools/test/make_SUITE.erl
@@ -20,7 +20,7 @@
 -module(make_SUITE).
 
 -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, 
- init_per_group/2,end_per_group/2, make_all/1, make_files/1]).
+ init_per_group/2,end_per_group/2, make_all/1, make_files/1, emake_opts/1]).
 -export([otp_6057_init/1,
 otp_6057_a/1, otp_6057_b/1, otp_6057_c/1,
 otp_6057_end/1]).
@@ -40,7 +40,7 @@
 suite() -> [{ct_hooks,[ts_install_cth]}].
 
 all() -> 
- [make_all, make_files, {group, otp_6057}].
+ [make_all, make_files, emake_opts, {group, otp_6057}].
 
 groups() -> 
 [{otp_6057,[],[otp_6057_a, otp_6057_b,
@@ -86,6 +86,20 @@ make_files(Config) when is_list(Config) ->
 ensure_no_messages(),
 ok.
 
+emake_opts(Config) when is_list(Config) ->
+ Current = prepare_data_dir(Config),
+
+ %% prove that emake is used in opts instead of local Emakefile
+ Opts = [{emake, [test8, test9]}],
+ error = make:all(Opts),
+ error = make:files([test9], Opts),
+ "test8.beam" = ensure_exists([test8]),
+ "test9.beam" = ensure_exists([test9]),
+ "test5.S" = ensure_exists(["test5"],".S"),
+
+ file:set_cwd(Current),
+ ensure_no_messages(),
+ ok.
 
 %% Moves to the data directory of this suite, clean it from any object
 %% files (*.jam for a JAM emulator). Returns the previous directory.
-- 
2.12.0

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File 2243-tools-Allow-Emake-options-to-be-passed-in-explicitly.patch of Package erlang (Revision 6a6e740c0161086d7407fd293e77c355)

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